2x - 6 = 4
2x = 4 + 6
= 10
x = 10/2
= 5
∴ x = 5
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2x + 1 = -5 so 2x = -6 so that x = -3 Then 3x - 4 = 3*(-3) -4 = -9 - 4 = -13
If 3x + 3 = 2x + 6 then 3x - 2x = 6 - 3 x = 3
If: 12 = 2y+x then y = -1/2x+6 So: y = 2x+4 and y = -1/2x+6 which means that they are perpendicular lines
5x - 4 = 3x + 6 5x - 3x = 6 + 4 2x = 10 x = 5
-4